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Field switchboard, 1943 Field telephones operate over wire lines , sometimes commandeering civilian circuits when available, but often using wires strung in combat conditions. [5] At least as of World War II, wire communications were the preferred method for the U.S. Army, with radio use only when needed, e.g. to communicate with mobile units ...
The field telephone 50 is used by all communication troops of the Swiss Army for both point-to-point connections and landlines . For the first variant, two field telephones are connected with telephone wire. In the second version the phone is connected to lines specially reserved for the army. Such a linked phone is accessible from any telephone.
The TA-57 can be used for induction calls working with 2-wire lines in an OB (local battery) or a ZB (central battery) operation. It can be used to transmit voice messaging in ranges between 0.3 and 3.4 kHz, with a calling frequency of 15 to 45 Hz. Absolute signal level at output of transmission path with a 600Ω load ranges between -3 and +3 dBu.
Colonel Atiim O Phillips. Marine Corps Communication-Electronics School (MCCES) is the Marine Corps training ground for the majority of the communications and air/ground electronic maintenance Military Occupational Specialties (MOS). MCCES is based at the Marine Corps Air Ground Combat Center Twentynine Palms, California.
Hello Girls was the colloquial name for American female switchboard operators in World War I, formally known as the Signal Corps Female Telephone Operators Unit. During World War I, these switchboard operators were sworn into the U.S. Army Signal Corps. [1] Until 1977 they were officially categorized as civilian "contract employees" of the US Army.
A telephone switchboard is a device that allows telephone lines to be interconnected, enabling the routing of calls between different phones or phone networks. [17] The switchboard operator was a person who manually connected calls by plugging and unplugging cords on the switchboard.
The German-army-issued infantry radios in two main series. The "Backpack" or Torn (Tornister) series and the field or Feld series. Torn.Fu Series. Torn.Fu.a: A HF transceiver. It operated in the 3–6.67 MHz frequency range. 2 Watt output AM voice and CW Torn.Fu.b: A HF transceiver. It operated in the 3-5 MHz frequency range. 0.7 Watt output AM ...
The United States Army Signal Corps ( USASC) is a branch of the United States Army that creates and manages communications and information systems for the command and control of combined arms forces. It was established in 1860, the brainchild of Major Albert J. Myer, and had an important role in the American Civil War.